[NH2:1][C:2]1[CH:10]=[CH:9][C:8]([S:11]([CH3:14])(=[O:13])=[O:12])=[CH:7][C:3]=1[C:4]([OH:6])=O.Cl.CN(C)CCCN=C=NCC.ON1C2C=CC=CC=2N=N1.CN1CCOCC1.[CH:44]([C:48]1[CH:54]=[CH:53][C:51]([NH2:52])=[CH:50][CH:49]=1)([CH2:46][CH3:47])[CH3:45]>C1COCC1>[NH2:1][C:2]1[CH:10]=[CH:9][C:8]([S:11]([CH3:14])(=[O:13])=[O:12])=[CH:7][C:3]=1[C:4]([NH:52][C:51]1[CH:53]=[CH:54][C:48]([CH:44]([CH2:46][CH3:47])[CH3:45])=[CH:49][CH:50]=1)=[O:6]To a suspension of 2-amino-5-methanesulfonyl-benzoic acid (0.750 g, 3.48 mmol) in THF (50 mL) were added 1-(3-dimethylaminopropyl)-3-ethylcarbodiimide hydrochloride (0.730 g, 3.83 mmol), 1-hydroxybenzotriazole (0.510 g, 3.83 mmol), and 4-methylmorpholine (0.380 g, 3.83 mmol). The reaction mixture was stirred at room temperature for 5 minutes and then 4-sec-butyl-aniline (0.780 g, 5.22 mmol) was added. The reaction mixture was stirred at room temperature for 16 hours. The solvent was evaporated in vacuo, water was added, and the product was extracted with ethyl acetate. The solvent was evaporated in vacuo and the residue was washed with ether to obtain 2-amino-N-(4-sec-butyl-phenyl)-5-methanesulfonyl-benzamide as white solid. Yield: 0.75 g (62%).
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